Outer surface of a fuel tank



FIG. 1 is a rear, top perspective view of an outer surface of a fuel tank showing our new design.

FIG. 2 is an enlarged front, top perspective view of the outer surface of a fuel tank design of FIG. 1.

FIG. 3 is a top plan view of the outer surface of a fuel tank of FIG. 2.

FIG. 4 is a side view of the outher surface of a fuel tank of FIG. 2; and,

FIG. 5 is a front view of the outer surface of a fuel tank of FIG. 2.

The broken lines immediately adjacent the shaded surfaces represents the bounds of the claim and all other broken lines are for illustrative purposes only. None of the broken lines form part of the claimed design. 

The ornamental design for an outer surface of a fuel tank, as shown and described. 